Five today were gon na, be talking about designing and building your own diy drone. This is a series i mentioned a couple videos ago and you all were really interested in it. So i figured now is a good time to get started. This video specifically were not even gon na be touching. The cad program were not going to be touching, slicers were not going to be touching, parts were going to be setting our design requirements. Now. This is an important step in any project youre doing whether its a project for work or a diy project normally for a diy project, its not a really formal process. However, i think for this series it is important to more directly look at our design requirements and what were trying to build and make that a bit more of a formal process. Now you may have seen these drones in the opener and, if youve been a long time, follower youll recognize them as being some of my first 3d printed drone project. However, i didnt get my start in 3d printed drones. I got my start using a flamewheel f450 kit, basically the same kit that anyone getting into the drone hobby five to eight years ago would have started now. The f450 flame wheel, the 450 meaning 450 millimeters between the motors uh, is a very lightweight, very simple kit that is made up of some nylon: reinforced plastic arms with heat threaded heat nut inserts and it uses pcb material for the upper and lower center frame structure.

Now those pcbs also act as conductive surfaces called a power distribution board that will distribute power to all of the four motors, the motor controllers and so on. You dont need to know all that for this, but its if youre, looking to get your start in your very first drone and you dont want to actually design and 3d print something make sure to check out those kit. Now, as for the design requirements of our diy drone, i think its important if this is your first 3d printing project. First, drone project, first drone youve ever flown, were going to start small, were going to start simple and were going to start lightweight something a bit more like this beta 95x, though ill bet without the dji equipment. The force forces exerted on a drone. This small are very little as long as youre not hitting anything. So i think this is a good place to start theres, not a lot of momentum, so youre not going to end up with a lot of stresses on the arms theres, not a lot of well theres, not a lot of momentum. So when you hit something youre less likely to damage something, my first diy drone was this, and this is actually the first frame, though its seen a few changes, both manual modifications and reprinted arms. The reason i reprinted the arms a bunch was because this things heavy uh, obviously in this form, without all the hardware, its not very heavy.

However, back, then the motor controllers were discrete and they were heavy. They had huge aluminum heatsinks on them, because the mosfets werent as efficient the motors werent as power dense and they were heavy. The flight controllers were cased with aluminum to reject noise and vibrations, so they were heavy technologys come a long way since oh dont even get me started on the cameras we strapped full on gopros or other action cameras to the front of these things and used a Discrete video transmitter that, in and of itself weighed you know, 50 60 grams mounted to the back. There were telemetry radios that werent integrated. There were your receivers. There were so many parts that you needed. A big drone. You couldnt do something this small and tightly integrated. One of the issues i had with this drone is it would snap its own arms, mid flight youd go to do a turn or a bank, not even anything, super aggressive and next thing. You know this arm sheared right off and it would dive or fall or otherwise crash in a relatively controlled, but not quite manner. These were originally made of wood and i replaced them with aluminum c channel, which is both lighter stronger. You know it can take a hit a bit better wont snap itll bend first, so those were some of the faults with building a bigger drone. Now we can also look into my other drone this one. I actually did a couple of videos on on my channel.

If you want to check it out ill have some links down below, but i wanted to do a few special things with this. I wanted to use aluminum arms to get rid of the issues of my first drone, where i had the arms snapping. I wanted to have a full gps stack on it, so it could be fully autonomous and i wanted the battery to be integrated into the core so that the battery just slid right through which would allow it to be modular on the bottom, so that you can Use this power port and a couple of data pins that i never installed and attach various modifications to the drone, such as gimbal cameras, wi, fi, pineapples and so on, and, of course, a lot of you know the drone i designed and built that actually got me On hack, five in the first place project cuckoo that thing, it still has a soft spot in my heart, and i know a lot of you really liked it, and i want to do more with that concept in the future uh. However, while the mark 7 pineapple is a very great piece of hardware, its not really conducive to a sleek five inch drone like that so in the future, were definitely going to be tinkering with that some more, but were going to need something a little more. The size of this, and not quite the size of project cucu, however, for this video were going to keep it simple, were not messing with gps, were not messing with the new dji fpv equipment were going to go somewhat old school new school mixing a little bit Of everything to make a simple, fpv drone – and i know simple and fpv – are not normally used in the same sentence, but i also feel its important to learn to fly a drone manually so that, if you have any issues with the gps, if you have any Issues with the flight controller, with loss of control or telemetry, you know how to fly it and recover it in the worst case scenario, using acro mode, so thats part of what were going to be looking at as well.

Okay, so lets make a list of our design requirements. We want something small lightweight. We want something affordable, because a lot of you are going to be using this as your first drone beyond one of the little 20 no camera equipped infrared controlled things you can get at the dollar store, so youre almost certainly going to crash it. So we need to keep that in mind as well replacing parts and doing upgrades and making it accessible so that you can get it all the pieces you need to change. I think were going to use an integrated flight controller and an integrated motor controller so that we can consolidate as much as possible and minimize our wiring. This will also make the make it extremely modular which is counter intuitive, but with how cheap flight controllers and motor controllers have gotten replacing a four in one esc. These days is not a big deal, so were going to use. Integrated hardware were also going to be using an analog camera and an analog video transmitter again to keep costs down and make this a more approachable and accessible drone and thats. Really all there is to it now. These arent design requirements in the sense of were setting very detailed in depth. What motors were using? What hardware were using but were going to figure that out in the next video were going to talk through some of the standards? Why motors are the way they are? Why flight controllers are the size they are? This is just the first steps to get your brain working to get you thinking about what you might want to build, so that you too can design your own project cuckoo or your own hack drone and make something with a purpose in mind, rather than just flying Around your backyard, i think its also important that we are able to print this drone on a 120 by 120 millimeter printer instead of something massive like the prusa i3.

Well, i say massive: there are much bigger printers out there, that ones only 200 by 200, but its about the average size. I want to be able to print this on. My monoprice mini select mini v2. The one i carried around in my van it ran on solar power. Its super efficient, super affordable. You can find them for under 150, with a little bit of effort, so were probably gon na make this again a three inch drone a bit more like the beta 95x, rather than something huge like this. However, thinking about it, i think you could 3d print the center chassis and the arm mounts on the monoprice mini. I never actually thought about that. Maybe in the future well have a look at designing a much bigger autonomous platform as well. Let me know if youd like to see that, but first lets get the little fpv drone going. I think starting small is important here so that you dont get discouraged from the hobby. It is a very intimidating and information rich and opinion rich hobby. So while i got my start designing much larger drones, i spent a lot of money and a lot of time designing and building and not much time actually flying. So, starting with something simple and focusing on the important aspects of the drone design and just learning is how what were going to be doing so in the next video were actually going to dive into the various motors.

The flight controllers, the standards uh, the actual design work and the video after that were going to start doing. The cad work were going to be designing it from the ground up in fusion 360. and while it wont be a cad tutorial, youll want to learn a few things about extruding, sketching and so on. Im going to walk you through step by step where the holes need to be placed, how you place them, and so on. So for some of you, this might be a great first project. As long as you can solder thats, the only real skill you need to pick up this project is a little bit of soldering experience anyway. I hope you all are going to enjoy this series and im excited to continue working on it. If you have any comments or questions or suggestions about hardware that you would like to see used or where we should go with this series, maybe what colors do you want the drone to be be sure to leave a comment down below ive been glitch? This has been hack five.